An online line switching methodology with look-ahead capability to alleviate power system overloads based on a three-stage strategy
An online line switching methodology with look-ahead capability to alleviate power system overloads based on a three-stage strategy
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DOI：
10.1016/j.ijepes.2019.105500
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发表时间：
2020-02
影响因子：
5.2
通讯作者：
Zhengwei Shen;H. Chiang;Yong Tang;N. Zhou
中科院分区：
文献类型：
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作者：
Zhengwei Shen;H. Chiang;Yong Tang;N. Zhou
本文提出了一种具有前瞻能力的在线线路切换方法，以减轻线路过载。这种新颖的在线方法是基于一个三阶段的战略，包括筛选，排名和详细的分析和评估阶段的快速（在线应用）和准确性。所提出的在线方法执行的任务，快速识别有效的候选线路，排名的有效候选人，排名靠前的候选人的详细分析，并提供一组有效的线路切换解决方案，为当前的操作点。在执行所提出的线路切换动作之后，当前和前瞻切换后电力系统都满足操作和工程约束。所提出的方法的一个显着特点是，它提供了一套高质量的线路交换解决方案。精确的交流潮流所提供的结果被用作基准，以比较所提出的三阶段方法的准确性。IEEE 39节点和2746节点电力系统的有效性和快速的线路切换方法与前瞻能力进行了评估，有希望的结果。
An online line switching methodology to alleviate line overloads with look-ahead capability is proposed in this paper. This novel online methodology is based on a three-stage strategy, including screening, ranking, and detailed analysis and assessment stages for fast speed (online application) and accuracy. The proposed online methodology performs the tasks of rapidly identifying effective candidate lines, ranking the effective candidates, detailed analysis of the top ranked candidates, and supplying a set of effective line switching solutions for a current operating point. Both the current and the look-ahead post-switching power systems, after executing the proposed line switching action, meet the operational and engineering constraints. One distinguishing feature of the proposed methodology is that it provides a set of high-quality line switching solutions. The results provided by the exact AC power flow are used as a benchmark to compare the accuracy of the proposed three-stage methodology. The effectiveness and fast speed of the proposed line switching methodology with look-ahead capability are evaluated on the IEEE 39-bus and 2746-bus power systems with promising results.